Finding the Fourth Proportional to 316,274.92, 474,412.82 and 129,286.42
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Solution
The fourth proportional to 316,274.92, 474,412.82 and 129,286.42 is: 193,929.81
Step by Step Solution
- Step 1: Write the proportion equation
316,274.92 : 474,412.82 = 129,286.42 : x - Step 2: Convert to fraction form
316,274.92/474,412.82 = 129,286.42/x - Step 3: Cross multiply
316,274.92x = 474,412.82 × 129,286.42 - Step 4: Simplify right side
316,274.92x = 61,335,133,267.44 - Step 5: Solve for x
x = 61,335,133,267.44/316,274.92 - Step 6: Final answer
x = 193,929.81
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.